Machine for mixing soap and other substances



(No Model.)

A. DOLL.

l MACHINE POR MIXING SOAP VJMID OTHER S-UBSTANGES. 'No. 356,991. Y Papen'edf'eb. l, 1887.

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UNITED STATES PATENT OEEICE,

ARNOLDv DOLL, OE' CLEVELAND, OHIO.

MACHINE FOR MIXING SOAP ANDV OTHER sUBsTANoEs. t

SPECIFICATION forming part of Letters Patent No. 356,991, dated Februay 1l 1857- Application hled October 23,1884. Serial No 146,299.V (No model.)

To all whom, it may concern;

Be it known that I, ARNOLD DOLL, of Clevcland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful 5'Improvements in lVIiXing-lVIachines; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same. l

My invention relates to improvements in mixing-machines adapted more especially to the manufacture of soap, and is designed as `an improvement on a machine for which Letters Patent of the United States were granted to Charles Elling,.Beissue No. 4,854, dated April 9, 1872, the object being to provide the inner cylinder and `preferably the container with steam-chambers for heating, and to arrange a grating or equivalent device over the inner cylinder to the end that, as the mass is forced` upward through the said cylinder by the actionvof the screw, the grating will gather the lumps and pieces that have not been reduced and retain them in the hottest part of the apparatus and subject to the action of the heated iiuid until the `refractory parts are melted, dissolved, or worn away by attrition, and are united with the; mass.

With these vobjects in vview my invention consists in certain features of construction and n combination of partsihereinafter described, and pointed out in the claims.`

In the accompanying drawings, Figure l is an elevation, partlyin section,oi my improved mixing-machine. Fig. 2 is a reduced view,in perspective, of the machine. Fig.'3 is aview, in perspective, with portionsbroken away to show more clearly one of the hooks that hold the grating onto the cylinder. Fig. 4 is an enlarged View, in perspective, of one of `the clamps. Y

A represents a container, made usually of sheet metal and `cylindrical in form, and has an inner part or lining, A', joined to the outer 45 bpart so as to leave a steam-chamber, a, with which are connected the induction and eduction pipes, respectively, a and a2. The bottom consists of the conical part B and the cen-4 tral part, B', the latter being usuallyilat, or

nearly so, and may have a dischargingorice 5o covered with the slide b, and the'whole structure is mounted on the legs C.

D is an inside upright hollowcylindrical structure open at the top and bottom and provided with double walls, as shown, inclosing thesteamchamber d. This cylinder is mounted on the legs E, that are alsotubes and lead from the chamber d down through the bottom plate B, where ,they are provided with jam-nuts e, or other appliances for making a tight-joint withthe plate 'B'. One of these tubes is used as an induction and another as aneduction pipe, and the third may have a valve, e', and be utilized as a discharge-pipe to relieve the chamber cl of condensed'water.

F is an upright shaft` centrally located in 7 the cylinder D, and supported below -in a suitable stepping, f, and isjournaled above in the l frame G, and is intergeared with the drivingshaft H, that is supported by the same'frame. The shaft F has attached and is usually integral with the spiral blade or worm I, thatis about as broad as will 'revolve in the cylinder without contact. f f

O is a steam-pipe provided with a suitable container,'where it is bent around' in a coil more or less, and provided with small holes for discharging live steam into the body of the container, as is sometimes necessary inV tempering the mass.

Vhen the ingredients of which the soap is to be made are in the container and, in the main,are in a suitable liquid condition to commence the mixing process, the machine is set in motion and the shaft ,FA is caused to revolve with considerable speed in the direction of the arrow. The spiral forces the liquid up through the cylinder D, from whence it overows back into the body 'of the tank, and causes va strong go current down on the outside of the cylinder, resulting in a thorough and speedy miXingof the liquids.

By reason of the sloping part B there is no waste room where portions of the material 95 may remain unmixed; but instead there is a continuous concentration of the mass at the bottom of the cylinder D in a position which ll vValve (notshown) and leads down inside of the Y it cannot escape the action of the spiral, and hence the mixing is quickly and thoroughly done.

The materials used in making soap are not usually select, and almost anything is offered the opportunity of uniting with this useful commodity. p

In the heterogeneous assemblage of things that are sought to be compounded some refractory elements are usually found-such, for instance,as old bars of soap--thatare not readily reduced to a liquid state, and to aid in such reduction heat is required. To furnish the necessary heat, steam is admitted to the chamber d, and also to the chamber a, when required. The hottest part is inside of the cylinder D, at the upper end thereof, and at this point is secured the conical grating K, th at arrests the floating pieces and retains them wh ere they are subject not only to the highest degree of heat had in the apparatus, but where the pieces are subject to the action of the hot liquid that is constantly being forced up through them by the action of the spiral, so that by the aid of heat and attrition the refractory elements are speedily reduced and united with the mass. rlhe gratings are usually made in halves, so that they are easily placed in position around the shaft F.

L are clamping-braces pivoted at ZV to the frame G above and forked at the lower end, as shown in Fig. 4. The parts are so arranged that when the clampingbraces L are swung into position to hold the gratings down, as shown in Fig. l, the forked ends thereof embrace the outside bars on each half-set and hold the two parts of the grating together.

Hooks m are secured to the top of the cylinder D, and facing outwardin such position that as the two parts of the grating are set on the cylinder and slide together to embrace the shaft F, the said hooks extend over the outer rim or baud, lr, of the grating, and hold the latter down on the end of the cylinder` as shown more clearlyin Fig. 3. I have shown aconvenientand preferable manner of arranging these grates; but do not wish to limit myself to this construction. Any device that would act as a strainer or colander and retain the pieces of soap or other material in the position required would accomplish the same object and be evidently within the spirit and scope of my invention.

I am aware that it is not new to employ a cylinder constructed of a series of pipes scparated slightly from one another and resting on a steam-jacket, and a screw located within said cylinder for elevating the mass, and hence I make no claim thereto. In this device the lumps of soap or other material are caught between two ofthe pipes composing the cylinder and are shearedorcut in two by the screw. The lumps after they are divided fall back into the mass and again go through the same process until they are reduced. In my device .the sides of the cylinder are made' continuous,

and the upward movement of the lumps of soap or other material is retarded by the grating and held in the hottest part of the device until they are completely ground or cut up, and hence only pass through the cylinder once. By this construction considerable time is saved in the remelting of scraps.l

Vhat I claim is* 1. In a mixing-machine, the combination, with a container, an upright cylinder open at both ends and suspended within the container, and a screw located within the cylinder, of' a conical grating located over and secured to the top of said cylinder, substantially as set forth.

2. In a mixing-machine, the combination, with a container, the cylinder' having hollow walls located within said container, and a screw located within the cylinder, of a conical grating located over and secured to the top of said cylinder, substantially as set forth.

In testimony whereof I sign this specification, in thepresence of two witnesses, this 15th day of October, 1884..

ARNOLD DOLL.

Witnesses:

CHAs. H. DoRER, ALBERT E. LYNCH. 

